Math Problem Statement

Use the Rational Zero Theorem to list all possible rational zeros for the function f(x) = -4x^4 + 2x^2 - 4x + 6.

Solution

The function provided in the image is:

f(x)=4x4+2x24x+6f(x) = -4x^4 + 2x^2 - 4x + 6

To list all possible rational zeros using the Rational Zero Theorem, we need to:

  1. Identify the constant term (pp) and the leading coefficient (qq).

    • Constant term (pp) = 6
    • Leading coefficient (qq) = -4
  2. Find all factors of pp and qq:

    • Factors of p=6p = 6: ±1,±2,±3,±6\pm 1, \pm 2, \pm 3, \pm 6
    • Factors of q=4q = -4: ±1,±2,±4\pm 1, \pm 2, \pm 4
  3. List all possible rational zeros using the formula: Possible rational zeros=factors of pfactors of q\text{Possible rational zeros} = \frac{\text{factors of } p}{\text{factors of } q}

The possible rational zeros are: ±1,±2,±3,±6,±12,±32,±14,±34\pm 1, \pm 2, \pm 3, \pm 6, \pm \frac{1}{2}, \pm \frac{3}{2}, \pm \frac{1}{4}, \pm \frac{3}{4}

Thus, the possible rational zeros are: ±1,±2,±3,±6,±12,±32,±14,±34\pm 1, \pm 2, \pm 3, \pm 6, \pm \frac{1}{2}, \pm \frac{3}{2}, \pm \frac{1}{4}, \pm \frac{3}{4}

Would you like to check any of these values or have additional questions?

Related Questions:

  1. How do we test which of the possible zeros are actual zeros?
  2. Can the Rational Zero Theorem give non-rational zeros?
  3. What is the difference between real and rational zeros?
  4. How does synthetic division help verify possible zeros?
  5. What are some limitations of the Rational Zero Theorem?

Tip: It's always useful to graph the function to visualize where the real zeros might be before testing values.

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Math Problem Analysis

Mathematical Concepts

Polynomial Functions
Rational Zero Theorem

Formulas

Possible rational zeros = factors of constant term / factors of leading coefficient

Theorems

Rational Zero Theorem

Suitable Grade Level

Grades 10-12